Question about 1976 Laverda 250 Chott

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Oil blows when I start my bike

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Oil blows out of the oil breather. Can you tell me the problem?Too much oil in the engine.,

Posted on Nov 10, 2008

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2005 Kawasaki Ninja EX250 Bought it as is Guy who had it fell off and all plastics broke Bike was sitting for 4 years Bike cranks over and And starts If you give it full throttle and hold it at full...


It sounds like you have seriously over-filled the oil. This is not a good idea and can cause seals to blow out, blow by at the piston rings and in severe cases, possibly bent connecting rods. Drain the oil off and fill to spec. Sometimes they give the oil capacity on the side of the engine, in ml. measurement. For example a bike I have says: 1600ml If you don't know the conversion into quarts and can't find it anywhere on the internet, you can buy a cheap measuring container that has a metric reading on it.
I hope this helps you out, Good luck!

Oct 29, 2013 | Motorcycles

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I have a hose with a filter attached to it on the right side of the bike and every time i start the bike oil flows out of it?


check the oil level and make sure its not over full. the hose with the mini filter is a crankcase breather, if there is too much oil, it could cause oil to flow out the breather. It is possible that the rings are worn or broken causing blow by or extra crank case pressure. The hard shifting is usually caused by a dragging clutch or the clutch being out of adjustment.

Mar 14, 2012 | 1989 Yamaha FZR 600

1 Answer

I BOUGHT MY 2006 KX 450F IN 2009 ONLY RIDE IT TWICE BIKE TO BIG FOR ME. BIKE STAND FOR ALMOST 2 YEARS. SUNDAY I START IT THE SECOND KICK IT START. HE DIDN'T IDLE AND HE BLOW HIS OIL OUT. I TOOK IT FOR...


Yes, the problem is linked to compression getting past the rings. The pressure goes to the gearbox then some oil gets carried out of the box along with the compression. Too much oil in the gearbox makes the problem even worse. You shouldn't need pistons. Chances are the rings are just stuck in the piston ring grooves. Sometimes they can be freed up by the mechanic manipulating them. Often they break when manipulated. It all depends on how badly they are stuck. If a piston is badly scored it needs to be replaced. The scoring can stop the rings from sealing the cylinder. Do this; drain the oil then fill the box to the proper level. Wash the bike to rid it of previous oil spills. Now see if the problem returns after the washing. If the rings are stuck , the bike should be smoking as you start and ride it. Chances are that only the rings will need to be replaced. Any chance you can be there as the mechanic takes the cylinder off? A dishonest shop could bring you a badly scored piston and rings and say they came from your bike when in reality they came from another bike. They free up your rings and charge for new pistons and new rings as if they actually put them in.

Jul 27, 2011 | 2006 kawasaki KX 450 F

2 Answers

Gio 250cc dirt bike,blows blue smoke when started then still blows even more when riding


Oil ring snapped or seized. At least it won't seize up as there's plenty of oil there!

Jan 23, 2011 | Gas Gas SM 250 Motorcycles

1 Answer

My bike is blowing oil out of the vent tube,


Hi
Either you have over filled the oil or the crankcase is pressurising due to blowing past the piston rings or valve seals

Ride Safe
Bike-Doc

Jun 03, 2010 | 2004 Honda Xr 250

1 Answer

I am having an oil leak and don't know how to go about fixing it. It starts as soon as I start riding the bike. It is coming from the left side of the bike and sprays on my pants on my left leg


Well, what kind of oil does it seems like, a thin oil or thick oil?
Have you clen the bike and see where it might come from. By description, can not be pinpoint source location, have you check your fork, oil cooler connections, or even your LH engine to trace it's source?
Because if you are riding and oil splashes onto your pant legs can be caused by air pressure blowing a leak onto your legs. Hunt the source fisrt then wil try to fix it.

Apr 25, 2010 | 1993 Suzuki GS 500 E

1 Answer

White smoke blowing out the exhaust and oil consumtion on r.cyl.


Its most likely your rings. They get worn and start letting oil into the combustion chamber. They aren't extremely hard to replace.

May 13, 2009 | 2001 Suzuki VL 1500 Intruder LC

1 Answer

Oil blowing out of trans breather tube


hi 81 yamaha i am concerned about the fuel smell coming out with the oil. could be the carbs flooding filling your crankcase with fuel? if not it sounds like you have blow by which would cause your crank case to be slightly pressured. this is caused by worn piston rings. do not plug your crank vent. if you leave your vent open install small filter to stop dirt from entering jim

Mar 21, 2009 | 1981 Yamaha XJ 650

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